Lock



June 3, 1958 M. LOEB I 2,837,364

LOCK

Filed March 2, 1955 2 Sheets-Sheet 1 5o a 42 43 l iq. 5. i 12 INVENTOR.q 48 47 MORRIS LOEB /5l 5 BY N M I ATTORNEY June 3, 1958 M. LOEB2,837,364

LOCK

Filed March 2, 1955 2 Sheets-Sheet 2 INVENTOR. MORRlS LOEB "Wm/ wATTORNEY United States LOCK Morris Loeb, New York, N. Y.

Application March 2, 1955, Serial No. 491,733

3 Claims. (Cl. 292-228) This invention relates to locks in general, andmore especially to locks for screen doors, kitchen doors and the like.

Among the objects of the present invention it is aimed to provide animproved door lock characterized by a disk fixed to rotate with the lockhandle which is normally but yieldably anchored in a strike engagingposition by a spring means. i

It is still another object of the present invention to provide animproved lock characterized by two cooperating disks, one disk fixed torotate with the lock handle which is normally but yieldably anchored ina strike engaging position by a spring means, and the other diskrotatable into anchoring position of such first disk in turn to anchorsaid first disk against rotation and thereby anchor said lock fromclearing the strike when once brought into locking engagement with thestrike.

It is still another object of the present invention to provide animproved lock characterized by a disk fixed to the lock handle which isnormally but yieldably anchored in strike engaging position by a springmeans which can be manufactured at low cost and be installed at low costnot only due to the minimum amount of labor, but also due to theunskilled labor required.

These and other features, capabilities and advantages of the presentinvention will appear from the subjoined detailed description ofspecific embodiments thereof illustrated in the accompanying drawings,in which Figs. 1 to 16, inclusive, are illustrative of one embodiment,Fig. 1 being an end elevation of the lock in position on a door and astrike in position on a door frame partly broken away and in section.

Fig. 2 is a top plan view of the lock casing, intact, but removed fromthe door and handle.

Fig. 3 is an end view of the lock casing shown in Fig. 2.

Fig. 4 is a bottom plan of the casing with the cover alone removed.

Fig. 5 is a section on the line 5-5 of Fig. 4.

Fig. 6 is a bottom plan of the casing with the cover and two main disksremoved.

Figs. 7 and 8 are a top plan and an end elevation of the larger of thetwo main disks.

Figs. 9 and 10 are a top plan and an end elevation of the smaller of thetwo main disks.

Figs. 11 and 12 are a top plan and an elevation of the cover for thecasing.

Fig. 13 is a side elevation of the strike.

Fig. 14 is a section on the line 1414 of Fig. 13, and Fig. 15 a sectionon the line 15-15 of Fig. 14 of the strike illustrated in Fig. 1.

Fig. 16 is a perspective of the spring shown in Fig. 15.

Fig. 17 is a bottom plan of a second embodiment of the casing with thecover and two operative disks removed.

Fig. 18 is a top plan and Fig. 19 a side elevation of a third embodimentof the casing showing a different type of smaller disk.

In the embodiment shown in Figs. 1 to 16, inclusive, such as illustratedin my copending applications for patent Ser. Nos. 479,733 and 479,734,both filed January 4, 1955, and Ser. No. 482,093, filed January 17,1955, now Patent Nos. 2,721,752, 2,721,753 and 2,721,754, respectively,all dated October 25, 1955, there is shown a door frame 1 having arecess 2 into which extends the part 3 of the bracket 4 secured to theouter face of the frame 1. In the present instance the bracket 4 has aflange 5 fcrming a limiting stop for the flange 6 of the housing 7 ofthe lock. Adjacent the flange 5, there is secured the strike 8illustrated more or less in detail in Figs. 12 to 16, inclusive, and inmyPatent No. 2,721,754 aforesaid. This strike 8, see Figs. 12 to 16,consists essentially of a casing 9 having a bridge 10 and two wallportions 11 and 12 spaced from one another to form the opening 13. Thestrike bar 14 normally engages the inner faces of the wall portions 11and 12, with the ends of the bowed spring 15 engaging the ends of thestrike bar 14 and the convex intermediate portion of the spring 15resting on the bridge 16.

The housing 7 and its associated parts now to be described in practiceare so fitted to the door that in closed position of the door when thenose 16 of the wing handle 17 engages the strike bar 14 as shown in Fig.l, the flange 6 will snugly engage the flange 5 and thus preventrattling of the door caused by the wind or the like.

Through the walls 13 and 19 of the housing 7, the conventional openingsare formed to receive the main square shank 20 of the lock which in thepresent instance is frictionally secured to, or press fitted into, thehub 21 of the knob handle 22, and extends into the extended recess 23 inthe hub 24 of the wing handle 17. In the hub 24 there is providedanopening in communication with the recess 23 to receive the set screw 25in turn to engage the shank 2t and anchor it in the wing handle 17.

The shank 20 also extends through the casing 26 which contains theelements constituting the main part of the present invention.

The casing 26, as shown in Fig. 2, has two small screw openings 27 and28 spaced from one another with an intermediate large opening 29disposed between the two openings 27 and 28. an arcuate opening 30. Thecasing 26, see Fig. 6,.has

an annular recess 31 having two outer narrow arcuate channel portions 32and 33 terminating in the outer shoulders 34 and 35, respectively, and awide arcuate channel portion 36 having two inner shoulders 37 and 38 andcontinuing into the channel portions 32 and 33. The large channelportion 36 receives the coil spring 39 with its ends tensed between theshoulders 37. and 38.

The large disk 48, see Figs. 7 and 8, has a square central opening 41 toconform to the shape in cross section of will engage and compress thespring 39, in turn so that when the handle 17, 22, is released, thespring 39 will cause such handleto return to its normal, neutralposition, where the ends of the spring 39 will engage the shoulders 37and 38. In order properly to position the disk 40, the face 44 of thecasing 26 is depressed relative to the face 45. The depressed face 44extends over into the annular channel 46, which channel 46 receives thesmall disk 47 shown in Figs. 9 and 10. The small disk 47 is providedwith a projection 48 which extends into the arcuate opening 30 and isalso provided with v a central circular opening which receives theannular raised portion 49. The opening 28 is positioned centrally of theraised annular portion 49.

In addition, the casing 26 also has The small disk 47 is provided inorder to anchor the large disk against rotation when desired. For thispurpose the large disk 47 is provided with an arcuate recess and thesmall disk with an arcuate recess 51, the arcuate recess 50 being largeenough to clear the small disk 47 and receive it when the recess 50 ispositioned in alinement with, or rather as a continuation of, the disk'47, the position shown in Fig. 4. Then, when the projection 48 isengaged and the small disk 47 is returned, it will enter the recess 56and anchor the large disk from rotating with the shank 20. On the otherhand, the projection 48 is positioned as shown in Fig. 4, where the edgeof the recess 51 clears the path of movement of the large disk 40, whenthe large disk 40 may turn with the shank 20. In other words, either thelarge disk 40 will be positioned to enable the small disk 47 to rotateinto the recess 50 and anchor the large disk 40 against rotation, or thesmall disk 47 will be positioned to enable the large disk 40 to enterthe recess 51 and thereupon rotate with the shank 20.

The face 45 extends, see Fig. 6, from the left of the annular recess orchannel 36 over to the right of the recess 36 partly to surround theannular recess or channel 46. From the face 45 protrude two positioningstuds or projections 52 and 53 to be received in the small orifices 54and 55, respectively, in the cover plate 56. The plate 56 is providedwith a small opening 57 in alinement with the opening 27 in the casing26, a large opening 58 to receive the annular raised portion 49 and anintermediate opening 59 in alinement with the round opening 29 in thecasing 26. The thickness of the plate 56 corresponds to the distance ofthe face 45 from the outer lower edge 60 of the casing 26 so that whenin place the plate 56 will be flush with the edge 60 of the casing 26.

After assembling the spring 39 and disks 40 and 47 in the casing 26 asshown in Fig. 4, and then positioning the cover plate 56 on the face 45,as shown in Fig. 5, then the casing 26 so assembled is placed on thehousing 7 with the openings 57, 59 and 28 in alinement with openings inthe wall 18 of the housing 7 whereupon screws 61 are passed through theopenings 57 and 28 into screw threaded relation with alined openings inthe wall 18 and the casing 26 so secured in position.

In order to effect a frictional engagement between the disk 47 and thecover 56, the rib 62 is formed on the l cover plate 56 preferably bybeing depressed inwardly therefrom.

The rib is so formed in order snugly and frictionally to engage the disk47, thereby to anchor the disk 47 'with its projection 48 either in theanchored or u'nanchored position of the lock.

Thereupon the knob 22 is secured to the shank 20 preferably by africtional fit as aforesaid and the shank 20 passed through the walls 19and 13, round opening 59 in the cover plate 56, square opening 41 in thedisk 40, round opening 29 in the casing 26 and into the extended opening23 to and beyond the set screw 25, and the set screw 25 then turned intolocking engagement with the shank 26. In such position, if properlyfitted when the door is being closed, the nose 16 will engage the strikebar 14 to deflect it until the nose 16 passes the same into the positionshown in Fig. 1, when the strike bar 14 will return to its normal outerposition where it will hug the face 63 of the nose 16 and anchor theflange 6 against the flange 5, see Fig. l. Thereupon when the projection48 is in that end of the slot 30, the position shown in Fig. 4, eitherthe wing handle 17 or the knob handle 22 may be turned to cause the nose16 to clear the strike bar 14 and the door then opened. However, when itis desired to lock the door, then the projection 48 will be moved partway or fully to the other end of the slot 30, intermediate the width ofthe casing 26, see Fig. 2, when the disk 47 will move into the recess 50of the disk 40 and anchor it against rotation and thereby in turn anchorthe shank 20 against rotation and therewith anchor the handles 17 and 22from rotation.

The embodiment shown in Fig. 17 differs primarily from the embodimentshown in Figs. 2 to 10, inclusive, in that the arcuate spring 39 isreplaced by two straight springs 64 and 65 and the casing 66 is providedwith two straight recesses 67 and 68, respectively, to receive thesprings 64 and 65. The recesses 67 and 68 in the present instance areshown as inclined to one another with their inner ends spread apart andcommunicating with the short arcuate recesses 69 and 70, respectively,the inner ends of the springs 64 and 65 abutting against the shoulders71 and 72, respectively, at the inner ends of the recesses 67 and 68where such recesses communicate with the arcuate recesses 69 and 70.Disks, such as the disks 4t and 47, shown in Figs. 7 and 9, could beused with this embodiment in which case the projections 42 and 43 wouldbe positoned in and travel in the arcuate recesses 69 and 70,respectively, and the projection 48 be positioned in and travel in thearcuate recess 73.

The embodiment shown in Figs. 18 and 19 differs from the embodimentshown in Figs. 2 to 10, inclusive, in that the disk 74 in this instancehas an arm 75 extending through the slot 76 in the side wall 77 of thecasing 78. At the end of the arm 75 there is formed the projection 79which extends upwardly along the side wall 77. In the embodiment ofFigs. 2 to 10, inclusive, on the other hand, the projection 48 extendsup through the outer main wall 89 of the casing 26.

The provision of the shoulders 34 and 35 at the inner ends of thearcuate channels 32 and 33, respectively, serve positively to preventthe large disk 40 from overturning and possibly impairing the lock, andparticularly the spring 39.

It is obvious that various changes and modifications may bemade to thedetails of construction without departing from the general spirit of theinvention as set forth in the appended claims.

I claim:

1. In a lock, the combination of a casing, a main disk clockwise andcounterclockwise rotatably mounted on an axis in said casing relative toan intermediate locking position and having an angular openingtherethrough, projections extending from said disk, spring control meansengaging said projections and yieldably urging said disk into saidintermediate locking position and normally anchoring said disk againstrotation in said intermediate locking position, a shank having anangular cross section to fit said angular opening and thereby rotatewith said disk, a handle at one end of said shank and a strike barengaging nose and handle at the other end of said shank, said strike barengaging nose disposed in locking position when said disk is in saidintermediate locking position, said casing having recessed means toreceive and confine said spring means, two inner shoulders at the endsof said recessed means engaged by said spring means in said intermediatelocking position, there being extensions of said recessed means in saidcasing, and two outer shoulders at the ends of said extensionscooperating with said projections to form limiting stops for therotation of said main disk, one of said projections adapted to engageand follow the engaged end of said spring means while travelling in saidrecessed means whereby the rotation of said main disk in either angulardirection will compress the ends of the spring means engaged.

2. In a lock, the combination of a casing, a main disk clockwise andcounterclockwise rotatably mounted on an axis in said casing relative toan intermediate locking position and having an angular openingtherethrough, projections extending from said disk, two straight springsengaging said projections and yieldably urging said disk into saidintermediate locking position and normally anchoring said disk againstrotation in said intermediate locking position, a shank having anangular cross section to fit said angular opening and thereby rotatewith said disk, a handle at one end of said shank and a strike barengaging nose and handle at the other end of said shank, said nosedisposed in locking position when said main disk is disposed in saidintermediate locking position, there being two straight recesses in saidcasing to receive and confine said straight springs with two of theiradjacent ends spaced from one another and positioned adjacent oppositesides of said main disk, two inner shoulders at the ends of saidstraight recesses engaged by said springs in said intermediate lockingposition, there being arcuate extensions of the spaced ends of saidstraight recesses, and two outer shoulders at the ends of saidextensions cooperating with said projections to form limiting stops forthe rotation of said disks, one of said projections adapted to engageand follow the end of one of said straight springs while travelling inone of said straight recesses and compressing the spring engaged wherebythe rotation of said main disk in one angular direction will compressone of said straight springs and the rotation of said main disk in theopposite angular direction will compress the other of said straightsprings.

3. In a lock, the combination of a casing, a main disk clockwise andcounterclockwise rotatably mounted on an axis in said casing relative toan intermediate locking position and having an angular openingtherethrough, projections extending from said disk, arcuate springcontrol means engaging said projections and yieldably urging said diskinto said intermediate locking position and normally anchoring said diskagainst rotation when in said intermediate locking position, a shankhaving an angular cross section to fit said angular opening and therebyrotate with said disk, a handle at one end of said shank and a strikebar engaging nose and handle at the other end of said shank, said nosedisposed in locking position when said main disk is disposed in saidintermediate locking position, said casing having a main arcuate recessto receive and confine said spring, two inner shoulders at the ends ofsaid arcuate recess engaged by the ends of said arcuate spring in saidintermediate locking position, there being arcuate extensions of saidmain arcuate recess in said casing and spaced from one another, twoouter shoulders at the ends of said arcuate extensions cooperating" withsaid projections to form limiting stops for the rotation of said maindisk, one of said projections adapted to engage and follow one of theends of said spring while travelling in said main arcuate recess wherebythe rotation of said main disk in one angular direction will compressthe spring from one end of the spring and the rotation of said main diskin the opposite angular direction will compress the spring from theother end of the spring, a locking disk rotatably mounted in said casingon an axis parallel to the axis of rotation of said main disk andparallel to said main disk, said main disk and locking disk havingrecesses formed therein and extending inwardly from their peripheries,said locking disk having a projection extending through said casing formanipulation and rotatable actuation by said projection in one positionto position the recess of said locking disk to clear the rotatable pathof movement of said main disk and into another position to position theunrecessed portion ofsaid locking disk in the recess of said main diskin the area between the free ends of said arcuate extensions and therebyin the rotatable path of movement of said main disk to anchor said maindisk against rotation, and a cover for said casing having an annularshoulder frictionally engaging said locking disk normally to anchor itagainst accidental displacement from the position in which it is set.

References Cited in the file of this patent UNITED STATES PATENTS1,974,622 Moore Sept. 25, 1934 2,119,866 Milligan June 7, 1938 2,160,301Baume May 30, 1939 2,234,912 Falk Mar. 11, 1941 2,499,948 Egor Mar. 7,1950 2,733,089 Grevengoed Jan. 31, 1956

